Nut-lock.



H. com-5mm,

NUT LOCK.

APPLIGATION mum JULY 21. 190B.

913%? Patfintad 5911.23, 1

7 M wuamton b Lwan l vi t a tame J 4 W97, WWW

' State of Oklahoma, have invented certain nut-locks and consists of the details of conapplication of the improved. nut lock; Fig.

. the washer to provide an inwardly inclined the nut.

a central opening-of sufiicient size to receive i one side a substantially L-shaped slit 5, one portion of which is radial to and the th...-

1 This flange is of greater diameter or width has an inwardly beveled portion in which UNITED STATES; PATENT OFFICE.

SAMUEL H. COLEMAN, 0P IDABEL, OKLAEOMA, ASSIGNOR OF ONE-HALF TO DAVID W. ORR,

OF IDABEL, OKLAHOMA.

NUT-LOCK.

Specification of Letters Patent.

Patented Feb. 23, 1909.

To all whom it may concern:

Be it known that I, SAMUEL H. COLEMAN, a citizen of the United States, residing at Idab'el, in the county of McCurtain and new and useful Improvements ,in Nut-Locks, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to improvements in struction hereinafter described and claimed. and illustrated in the accompanying drawings. in which:

Figure l is a sectional view showing the 2 is an end view of the nut; Fig. 3 is a longitudinal section; Fig. 41s a detail view of the washer; and Fig. 5 1s a detail view of In the drawings 1 denotes a bolt or the like having formed in its screw threaded end a longitudinal groove 2 adapted to receive an inwardly extending radial tooth or pro- -jection 3 formed in the opening of a washer 4. The latter is in the form of a circular disk or plate of resilient sheet steel having the bolt and having at a suitable point in portion concentric with the axis of the washer, and which forms a circumferential locking tongue or pawl 6. The latter is curved longitudin lly or lengthwise and its main or body port. it lies in the lane of the washer while its extremity is ent angu larly beyondthe plane of the outer face of edge tooth 7 to engage ratchet teeth 8 formed upon a nut- 9. The nut 9 has a body portion of square or other polygonal shape in which is a threaded bore or opening to receive the bolt and at the inner end of which is. formed an annular radially projecting flange 10.

than the width of the nut and its under face the ratchet teeth 8 are formed. Said be eled ort-ion corresponds in width to that of the ange lO so that upon the inner face of the, nut is formed a smooth continuous or annu lar bearing surface 11 to'contact with a simimaking the L-shaped slit 1]. in the washer a suitable distance from the central opening in the latter, as clearly shown 1n. Fig. 4.

Owing to this construction, it will be seen that the washer will not be weakened by the will also be seen that as, with theexception of the free end of the tongue, the portions of the washer are undeflected, or are arranged in a common plane, the outer face not only forms the continuous fiat bearing surface 12 for engagement by the nut, but

the o iosite or inner face of the washer also Pl forms a continuous fiat bearing surface to rest against the object to be clamped, this adapting the washer to be more firmly secured in position. Said ratchet teeth 8 are spaced by the beveled portion from the outer face of the washer and are substantially V- shaped in cross section, that is, the opposite faces of each tooth are disposed at acute angles to each other and to the faces of the adjacent teeth, in order that the bent end or tooth of the tonguemay be free to move and may ride over the ratchet teeth so that the nut may be removed from the bolt when sufficient pressure is applied by means of a wrench or the like, to unscrew the nut. The resilient locking tongue or pawl 6 is of such shape, however, that it effectively engages the ratchet teeth and prevents the nut from working loose, no matterhow much jar or vibration the device is subjected to. The ratchet teeth'are made small and a great number of them are provided so that the nut will be locked at any desired adjustment.

From the foregoing it willbe seen that by making the washer with the locking tongue or pawl adjacent to its edge and leaving a solid or continuous bearing surface between such pawl and the central opening in the washer, the latter will he as strong as an ordinary washer and will per mit the nut to have an effective contact withit; and that by making the nut with the radialfiange l0 and forming the ratchet teeth asset forth upon the beveled inner surface or said flange, thatthe ratchet teeth'will be disposed out of contact with the washer and will therefore not be subjectto wear and atthe same time the continuous annular bearextending radial tooth within said opening ing surface 11- will be formed upon the nut for engagement with the annular bearing surface 12 on the washer. It will be further noted that the device is exceedirrgly siI nple in construction so that it may be, produced .ata small cost, that the nut can be easily applied and locked at any adjustment and as readily removed by the use of an ordinary wrench. r

Havingthus described the invention whatis claimed'is:

I A nut-dock comprising, 111 combination, a bolt having a longitudinal groove in its threaded end, a washer embodying a resilie ent metal diskformed with a central opening to receive the-bolt and with an inwardly to enter the groove in the bolt, said washer being also formed adjacent its outer edge with an L-shaped slit forming a resilient circumferential locking tongue having its body portion lying in the plane of the washer and signature in manor its free end bent atan angle beyond the plane oftherouter face of the washer, the

remainder of the latter being undefiected to provide fiat inner and outer bearing faces, and a nut upon the bolt havmg a reduced rectangular outer; portion and formed at.

the lIlHQI GEITCl HXQI'QOIE with an annular radially projecting flange, the inner. face of which is formed with an inner annular bearing portion and an outer annular beveled portion, the latter being providedwith ratchet teeth around the same for engagenient by the bent end of said tongue, said ratchet teeth being spaced by the bevel from SAMUEL H. COLEMAN. Witnesses G. Nrnsox, W. Monnnarn.

the presence'of two witnesses; 

